DEFINE_STRUCT USER_BUFFER 5 ELEM 1 SHORT version none ELEM 1 SHORT n_samples none ELEM 1 SHORT s_added none ELEM 1 SHORT spare none ELEM 2 STRUCT fix none DEFINE_STRUCT fix 9 ELEM 1 LONG pc_seconds s ELEM 1 LONG gps_seconds s ELEM 1 DOUBLE latitude deg ELEM 1 DOUBLE longitude deg ELEM 1 FLOAT height m ELEM 1 BYTE dop none ELEM 1 BYTE nsat none ELEM 1 BYTE msg_type none ELEM 1 BYTE spare none